/*
 * Copyright (c) 2007-2012, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package com.sun.org.apache.xerces.internal.xinclude;

import java.util.Stack;
import com.sun.org.apache.xerces.internal.xinclude.XPointerSchema;

public class XPointerFramework {

    /*
            Todo's by next integration.
            While constructing schema names and uris use a dynamic datastructure.
     */

    XPointerSchema[] fXPointerSchema;
    String[] fSchemaPointerName;
    String[] fSchemaPointerURI;
    String fSchemaPointer;
    String fCurrentSchemaPointer;
    Stack fSchemaNotAvailable;
    int fCountSchemaName = 0;
    int schemaLength = 0;
    XPointerSchema fDefaultXPointerSchema;

    public XPointerFramework() {
        this(null);
    }

    public XPointerFramework(XPointerSchema[] xpointerschema) {
        fXPointerSchema = xpointerschema;
        fSchemaNotAvailable = new Stack();
    }

    public void reset() {
        fXPointerSchema = null;
        fXPointerSchema = null;
        fCountSchemaName = 0;
        schemaLength = 0;
        fSchemaPointerName = null;
        fSchemaPointerURI = null;
        fDefaultXPointerSchema = null;
        fCurrentSchemaPointer = null;
    }

    public void setXPointerSchema(XPointerSchema[] xpointerschema) {
        fXPointerSchema = xpointerschema;
    }

    public void setSchemaPointer(String schemaPointer) {
        fSchemaPointer = schemaPointer;
    }

    public XPointerSchema getNextXPointerSchema() {
        int i = fCountSchemaName;
        if (fSchemaPointerName == null) {
            getSchemaNames();
        }
        if (fDefaultXPointerSchema == null) {
            getDefaultSchema();
        }
        if (fDefaultXPointerSchema.getXpointerSchemaName().equalsIgnoreCase(fSchemaPointerName[i])) {
            fDefaultXPointerSchema.reset();
            fDefaultXPointerSchema.setXPointerSchemaPointer(fSchemaPointerURI[i]);
            fCountSchemaName = ++i;
            return getDefaultSchema();
        }
        if (fXPointerSchema == null) {
            fCountSchemaName = ++i;
            return null;
        }

        int fschemalength = fXPointerSchema.length;

        for (; fSchemaPointerName[i] != null; i++) {
            for (int j = 0; j < fschemalength; j++) {
                if (fSchemaPointerName[i].equalsIgnoreCase(fXPointerSchema[j].getXpointerSchemaName())) {
                    fXPointerSchema[j].setXPointerSchemaPointer(fSchemaPointerURI[i]);
                    fCountSchemaName = ++i;
                    return fXPointerSchema[j];
                }
            }

            if (fSchemaNotAvailable == null)
                fSchemaNotAvailable = new Stack();

            fSchemaNotAvailable.push(fSchemaPointerName[i]);
        }
        return null;
    }

    public XPointerSchema getDefaultSchema() {
        if (fDefaultXPointerSchema == null)
            fDefaultXPointerSchema = new XPointerElementHandler();
        return fDefaultXPointerSchema;
    }

    public void getSchemaNames() {
        int count = 0;
        int index = 0, lastindex = 0;
        int schemapointerindex = 0, schemapointerURIindex = 0;
        char c;
        int length = fSchemaPointer.length();
        fSchemaPointerName = new String[5];
        fSchemaPointerURI = new String[5];

        index = fSchemaPointer.indexOf('(');
        if (index <= 0)
            return;

        fSchemaPointerName[schemapointerindex++] = fSchemaPointer.substring(0, index++).trim();
        lastindex = index;
        String tempURI = null;
        count++;

        while (index < length) {
            c = fSchemaPointer.charAt(index);
            if (c == '(')
                count++;
            if (c == ')')
                count--;
            if (count == 0) {
                tempURI = fSchemaPointer.substring(lastindex, index).trim();
                fSchemaPointerURI[schemapointerURIindex++] = getEscapedURI(tempURI);
                lastindex = index;
                if ((index = fSchemaPointer.indexOf('(', lastindex)) != -1) {
                    fSchemaPointerName[schemapointerindex++] = fSchemaPointer.substring(lastindex + 1, index).trim();
                    count++;
                    lastindex = index + 1;
                } else {
                    index = lastindex;
                }
            }
            index++;
        }
        schemaLength = schemapointerURIindex - 1;
    }

    public String getEscapedURI(String URI) {
        return URI;
    }

    public int getSchemaCount() {
        return schemaLength;
    }

    public int getCurrentPointer() {
        return fCountSchemaName;
    }

}//XPointerFramwork
